I've found that I haven't been able to sleep since quitting. I always drink coffee in the evenings and it occurred to me last night that caffeine might have a stronger effect now... I googled it and apparently the effect of caffeine doubles in people that quit smoking. 
Not sure if that only relates to quitting cold turkey, (no nic) or just quitting. I'm going to try going without coffee a few evenings to see if it makes a difference.
Anyone else have this problem?

Not sure if that only relates to quitting cold turkey, (no nic) or just quitting. I'm going to try going without coffee a few evenings to see if it makes a difference.
Anyone else have this problem?